Brush questions - luogu-p1089 Jinjin savings plan

P1089 Jinjin's savings plan -C Language

1、 subject

2、 The problem solving process

result ：

Code ：

// Luogu  P1089  Jinjin's savings plan 
#include <stdio.h>
#define MONTHS 12 //12 Months 
#define POCKET 300// Monthly allowance 
int main() {
    
	int money;
	int budget;// The budget 
	int surplus=0;// The remaining 
	int mom_money=0;// Save your mother's money 
	int temp;
	int i;
	for (i = 0; i < MONTHS; i++) {
    
		scanf("%d", &budget);// Monthly budget 
		surplus = surplus+ POCKET - budget;// After deducting the budget, the remaining money in Jinjin's hands 
		temp = surplus / 100;
		mom_money = mom_money + temp * 100;// Save your mother's money 
		surplus = surplus - temp * 100;// Subtract the money left in Jinjin's hand after saving it in her mother's hand 
		if (surplus < 0) {
    
			printf("-%d", i + 1);// In the first month, there was insufficient money 
			return 0;
		}
	}
	surplus = surplus + (int)(mom_money * 1.2);// Money in Jinjin at the end of the year 
	printf("%d", surplus);

	return 0;
}